2026 ICD-10-CM Diagnosis Code G06.0Intracranial abscess and granuloma

ICD-10-CM Codes›G00–G99›G00-G09›G06

ICD-10-CM G06.0
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

G06.0 is a billable ICD-10-CM diagnosis code for intracranial abscess and granuloma. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under CNS abscess.

Code Identity

ICD-10-CM Code
G06.0
Billable Status
Yes — Valid for Submission
Code Describes
Intracranial abscess and granuloma
Short Description
Intracranial abscess and granuloma
Same as the full description in the CMS dataset.
Parent Code
G06
Intracranial and intraspinal abscess and granuloma

Code Classification

ChapterG00–G99Diseases of the nervous system
SectionG00-G09Inflammatory diseases of the central nervous system
CategoryG06Intracranial and intraspinal abscess and granuloma
This CodeG06.0Intracranial abscess and granuloma

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Abscess of brain
  • Abscess of brainstem
  • Abscess of cerebral hemisphere lobe
  • Abscess of corpus callosum
  • Abscess of frontal lobe
  • Abscess of intracranial subdural space caused by fungus
  • Abscess of medulla oblongata
  • Abscess of midbrain
  • Abscess of occipital lobe
  • Abscess of parietal lobe
  • Abscess of pituitary
  • Abscess of pons cerebri
  • Abscess of subdural space caused by fungus
  • Brainstem pyogenic abscess
  • Candidal brain abscess
  • Central nervous system candidiasis
  • Cerebellar abscess
  • Cerebellar granuloma
  • Cerebellar pyogenic abscess
  • Cerebral abscess
  • Cerebral abscess caused by Aspergillus
  • Cerebral pyogenic abscess
  • Deep abscess of cerebral hemisphere
  • Epidural intracranial abscess
  • Epidural supratentorial pyogenic abscess
  • Extradural infratentorial pyogenic abscess
  • Fungal infection of cerebrum
  • Granuloma of brainstem
  • Granuloma of cerebral hemispheric lobe
  • Granuloma of intracranial structure caused by fungus
  • Granuloma of pituitary and hypothalamus
  • Hemichorea
  • Hemichorea due to brain abscess
  • Hypothalamic granuloma
  • Infection causing multiple abscesses of brain
  • Intracranial abscess
  • Intracranial and intraspinal abscesses
  • Intracranial embolic abscess
  • Intracranial epidural granuloma
  • Intracranial granuloma
  • Intracranial pyogenic abscess
  • Intracranial subdural granuloma
  • Late effects of pyogenic intracranial abscess
  • Multiple abscesses
  • Multiple intracranial pyogenic abscesses
  • Parasitic infection causing granuloma of cerebrum
  • Spinal cord abscess
  • Subarachnoid intracranial abscess
  • Subdural abscess
  • Subdural infratentorial pyogenic abscess
  • Subdural intracranial abscess
  • Subdural supratentorial pyogenic abscess
  • Temporal lobe abscess

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Brain any part abscess (embolic)
  • Cerebellar abscess (embolic)
  • Cerebral abscess (embolic)
  • Intracranial epidural abscess or granuloma
  • Intracranial extradural abscess or granuloma
  • Intracranial subdural abscess or granuloma
  • Otogenic abscess (embolic)

Type 1 Excludes

  • tuberculous intracranial abscess and granuloma A17.81

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Abscess(connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)
      • brain (any part) (cystic) (otogenic)
    • Abscess(connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)
      • cerebellum, cerebellar
    • Abscess(connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)
      • cerebral (embolic)
    • Abscess(connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)
      • cranium
    • Abscess(connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)
      • epidural
        • brain
    • Abscess(connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)
      • extradural
        • brain
    • Abscess(connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)
      • intracranial
    • Abscess(connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)
      • otogenic
    • Abscess(connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)
      • sinus (accessory) (chronic) (nasal)
        • intracranial venous (any)
    • Abscess(connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)
      • subarachnoid
        • brain
    • Abscess(connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)
      • subdural
        • brain
    • Abscess(connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)
      • temporosphenoidal
    • Granuloma
      • brain (any site)
    • Granuloma
      • cerebral (any site)
    • Granuloma
      • intracranial (any site)
    • Infection, infected, infective(opportunistic)
      • brain
        • septic
    • Suppuration, suppurative
      • brain
    • Suppuration, suppurative
      • intracranial

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR NVS014
CNS abscess
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Intracranial Abscess

    an abscess that is located in the intracranial space.

Patient EducationClinical

Abscess

An abscess is a pocket of pus. You can get an abscess almost anywhere in your body. When an area of your body becomes infected, your body's immune system tries to fight the infection. White blood cells go to the infected area, collect within the damaged tissue, and cause inflammation. During this process, pus forms.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert G06.0 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
324.0 Intracranial abscess
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About G06.0Overview

Is G06.0 (Intracranial and intraspinal abscess and granuloma) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report intracranial abscess and granuloma on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What is the ICD-9 equivalent of G06.0?

Under the General Equivalence Mappings, intracranial abscess and granuloma converts to ICD-9-CM 324.0 (intracranial abscess). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.